You are a wonderful mom. So many kids have parents who just give up.
My oldest son had a childhood friend who became an alcoholic at about 23. He had severe IBS type problems so drinking was so bad for him. My son actually moved out from a place they were sharing so I knew it was bad. The good news is this kid turned it around. AA helped him also. He's doing so well now
Hang in there and try to breathe.
Many hugs and much love.